package com.koal.conifg.security;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.koal.pojo.ResultBean;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;

/**
 *
 * 当未登录或者token失效时访问接口时，自定义的返回结果
 * @ClassName RestAuthorizationEntryPoint
 * @Author LuoYQ
 **/
@Component
public class RestAuthorizationEntryPoint implements AuthenticationEntryPoint {


    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException e) throws IOException, ServletException {
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json");
        PrintWriter out = response.getWriter();
        ResultBean bean = ResultBean.error("未登录或者token失效");
        bean.setCode(401);
        //将对象转为字符串
        String s = new ObjectMapper().writeValueAsString(bean);
        out.write(s);
        out.flush();
        out.close();
    }
}
